** FILE ** A police officer leads two women and a child from Sandy Hook Elementary School in Newtown, Conn., on the day of the mass killings. (Newtown Bee via Associated Press)
** FILE ** Sen. Joe Manchin, D-W.Va., becomes emotional as he meets in his office with families of victims of the Sandy Hook Elementary School shooting in Newtown, Conn., on the day he announced that they have reached reached a bipartisan deal on expanding background checks to more gun buyers, at the Capitol in Washington, Wednesday, April 10, 2013. (AP Photo/J. Scott Applewhite)
** FILE ** Sen. Joe Manchin, D-W.Va., becomes emotional as he meets in his office with families of victims of the Sandy Hook Elementary School shooting in Newtown, Conn., on the day he announced that they have reached reached a bipartisan deal on expanding background checks to more gun buyers, at the Capitol in Washington, Wednesday, April 10, 2013. (AP Photo/J. Scott Applewhite)
** FILE ** Sen. Joe Manchin, D-W.Va., becomes emotional as he meets in his office with families of victims of the Sandy Hook Elementary School shooting in Newtown, Conn., on the day he announced that they have reached reached a bipartisan deal on expanding background checks to more gun buyers, at the Capitol in Washington, Wednesday, April 10, 2013. (AP Photo/J. Scott Applewhite)
President Obama comforts Nicole Hockley on Monday at the University of Hartford in Connecticut. Mrs. Hockley and her husband, Ian, lost their son, Dylan, in the Sandy Hook Elementary School shooting in December. Mr. Obama is pushing Congress to hold votes on the gun controls he has proposed. (Associated Press)
** FILE ** A sign showing the town seal and a black ribbon is posted on the door of an antique colonial home in the historic district near the funeral for 6-year-old student and shooting victim Jack Pinto in Newtown, Conn., Monday, Dec. 17, 2012. A gunman opened fire at Sandy Hook Elementary School in the town, killing 26 people, including 20 children before killing himself on Friday. (AP Photo/Charles Krupa)
**FILE** A girl sits on a Newtown bus leaving the new Sandy Hook Elementary School after the first day of classes in Monroe, Conn., on Jan. 3, 2013. The Sandy Hook students started that day in their new school, formerly called Chalk Hill School in Monroe. It was renamed Sandy Hook Elementary and overhauled especially for the students from the Sandy Hook School shooting. (Associated Press)
**FILE** A girl sits on a Newtown bus leaving the new Sandy Hook Elementary School after the first day of classes in Monroe, Conn., on Jan. 3, 2013. The Sandy Hook students started that day in their new school, formerly called Chalk Hill School in Monroe. It was renamed Sandy Hook Elementary and overhauled especially for the students from the Sandy Hook School shooting. (Associated Press)
Mark Barden, right, father of Sandy Hook Elementary School shooting victim Daniel Barden, speaks alongside his wife, Jackie, center, and other Newtown parents, at the Capital in Hartford, Conn., Monday, April 1, 2013. Families of the school shooting victims were there to ask lawmakers to include a ban on existing high-capacity magazines in a legislation addressing gun control spurred by the massacre. (AP Photo/New Haven Register, Mara Lavitt)
